NGWS SDK Documentation  

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/Wp64 (Detect 64-Bit Portability Problems)

/Wp64

/Wp64 detects 64-bit portability problems on either Win32 or Win64 platforms. Any difference in the number of portability warnings generated between Win32 and Win64 can be corrected by using the __w64 qualifier on Win32. The __w64 qualifier tells the compiler what types are defined as 64-bit on Win64.

Variables of the following types are tested on a 32-bit operating system as if they were 64 bits:

See Also

Compiler Options | Setting Compiler Options